some civil rights activists are concerned about new voter i.d. laws. 31 states currently have voter i.d. laws in place. tennessee has one of the strictest. and former marine tim thompson is angry. >> hi. i'm tim thompson. i'm 56 years old. i'm a former united states marine. and i live here in nashville, tennessee. i'm against federal i.d. the way it is written right now. and we knew super tuesday was coming up, big scene, and i decided i needed to do something. i want to go down to the polling place and show my registration card like i've done for 37 years and see what they say to me. and, of course, they didn't allow me to vote. but then i told the polling director that i refuse to show you i.d. because i'm protesting the law. i'm giving up my right to vote today to fight for the rights of people that don't have this opportunity that want to vote but don't have the opportunity because they might not have that i.d. so the only weapon that an individual has in this country is his right to vote. and it is going to earn them blood. not some politici